I switched her to Hills k/d because apparently her kidney values are in worse shape [...] Soooo after all this high protein diet stuff she needs LOW protein and I can only find Rx brands.
Is this advice coming from your vet? Has Abby been officially diagnosed with kidney insufficiency/chronic kidney disease? The reasons I ask this are two-fold:
1. For cats with CKD, more 'old school' thinking leads them to be prescribed low-protein prescription renal diets even in the early stages of the disease. One of the problems CKD cats have is muscle wastage and switching to a low protein diet when it's not really necessary can actually worsen body condition problems. (Registering with the online support groups at Yahoo and Tanya's Site will get you more advice from experienced CKD kitty caregivers. They're very good at interpreting lab results, too.) Bearing in mind that you're trying to help Abby regain weight, a switch to a lower protein diet (unless absolutely medically necessary) could prove highly counterproductive. I also imagine that the carb content in the k/d would be above the recommended range for FD kitties. More recently, the approach to diet in early stage CKD cats is to closely monitor and control phosphorus levels (unless other markers are seriously out of whack) as this can do much to slow progress of the disease. It may be possible to keep phosphorus at an acceptable level through diet control but if that's not possible or the disease is more advanced then phosphorus binders can be added to the food.
2. It is not uncommon for cats fed a high protein diet to have BUN/urea levels a little bit higher than the top end of the normal laboratory reference range (dig round Tanya's Site for more info). Diabetic-friendly wet foods are typically high in protein, moderate in fat, and low in carbohydrates. Slightly elevated BUN/urea levels on their own are not necessarily a sign of the presence of kidney insufficiency.
If the regular lab results are inconclusive regarding kidney function you could ask your vet to order an SDMA assay. It's a new test from IDEXX. They claim that it can potentially detect signs of CKD when only 40% of kidney function has been impaired (cf. detection at about 70-75% impairment for more traditional tests).
It might be advisable to start a new thread, post Abby's lab results and ask members with experience of kidney issues to have a look at them for you, and also to register with the reputable CKD support groups to get specialist, experience-based input from them.
and her pancreas is actually pretty darn good.
Great! I'm assuming you've had a Spec fPL test done and maybe an ultrasound? What were the results/findings?
However, CKD and pancreatitis are just two conditions which may cause nausea and/or affect appetite in cats. Other causes include (but are not limited to):
* diet change.
* medication side effects (e.g. antibiotics).
* fasting too long between meals (usually produces frothy liquid vomitus due to stomach acid build-up).
* ketosis/DKA.
* inflammatory bowel disease.
* hyperthyroidism.
* hairballs.
* constipation/poor gut motility. (NB: may need to briefly treat first with Reglan before Cerenia or ondansetron will work properly.)
* "scarf 'n' barf" (cat eats too quickly then regurgitates the meal).
Due to the way that a cat's metabolism works it is vital that they eat regularly otherwise they can quickly develop hepatic lipidosis (fatty liver disease - potentially fatal). While it may take a lot of trial, error and time to identify (and hopefully resolve) the actual cause(s) of any nausea/inappetance problem the important thing is to promptly
treat the cat's eating difficulties (anti-nausea/appetite stimulants/diet change/other) in order to keep it safe and regain weight if needed. This is even more true for diabetic cats who need insulin because, for them, appetite problems make it more difficult to administer sufficient insulin and there's also the risk of developing diabetic ketoacidosis, another potentially life-threatening condition. At a lesser level, it can be more difficult to safely dose underweight cats because they don't have sufficient stores of sugars in the body to adequately protect them from hypoglycaemia when insulin therapy brings their BG down into lower number ranges (a condition called 'brittle' diabetes in humans).
Mogs
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